hearing, jeremy stopleman, ceo of yelp, which enables users to search and review local businesses, a service also provided by google itself. >> what we're most concerned about is that google is no longer satisfied with pointing users to the best content anywhere on the web it can be found. instead, it seems they prefer to send users to the most profitable content on the web which is naturally their own. >> reporter: critics might point to the following example. say you're looking for chinese food in washington, d.c. at the top of the page, google lists many restaurants with links to reviews. google reviews. click on any one of them, and you're taken to a page on google plus, the company's social network. you can then read an in-depth review from zagat, a company that happens to be owned by, you guessed it, google. this may not happen all the time. in fact, sometimes competitors will come up first. but the complaint is that google often drives traffic to its many services and products depriving other companies of a level playing field. >> when a company begins to get a huge market